| Countries of South America with an Empty Map | 0 | - | 4.94 | 105,365 |
| South America Map Quiz | 0 | - | 5.00 | 1,554,885 |
| Word Chain - South America | 0 | - | 4.51 | 23,989 |
| United States Map Quiz | 0 | - | 4.98 | 4,168,950 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,899 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,686 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 130,498 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,727 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,029,722 |
| North America Map Quiz | 0 | - | 4.98 | 251,106 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,940 |
| Canada Provinces and Territories | 0 | - | 5.00 | 345,524 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 643,601 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,491 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,790 |
| Famous People from South America | 0 | - | 4.15 | 22,069 |
| Central America and Caribbean Map Quiz | 0 | - | 4.90 | 904,475 |
| North American Capitals - Map Quiz | 0 | - | 4.88 | 58,701 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 95,067 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 64,819 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,808 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 240,682 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,853 |
| Cities and Towns of Massachusetts | 0 | - | 4.93 | 74,866 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 40,207 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,736 |
| States of Mexico | 0 | - | 4.96 | 177,830 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 54,645 |
| States of Brazil | 0 | - | 4.97 | 89,386 |
| Central American Countries | 0 | - | 4.98 | 157,182 |
| Caribbean Countries and Territories | 0 | - | 4.81 | 113,259 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 150,026 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 49,360 |
| History of Mexico | 0 | - | 4.52 | 15,358 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 532,033 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,826 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 82,984 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 160,561 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 178,122 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,600 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,783 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,596 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 67,930 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 222,029 |
| Canada Geography Trivia | 0 | - | 4.80 | 47,661 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 216,170 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,989 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 280,444 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,142 |
| Australian Capitals | 0 | - | 4.92 | 62,813 |
| Largest Caribbean Islands | 0 | - | 4.07 | 16,763 |
| Famous Caribbean People | 0 | - | 4.37 | 12,653 |
| Saintly Islands of the Caribbean | 0 | - | 4.32 | 24,128 |
| Territories of the United States | 0 | - | 4.80 | 52,582 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.79 | 39,842 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 175,997 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,464 |
| Name a Valid Answer - United States #1 | 0 | - | 4.62 | 94,328 |
| New York City Geography | 0 | - | 4.43 | 33,172 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,829 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,621 |
| Official European Union Languages | 0 | - | 4.97 | 239,550 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,520 |
| Europe Map Quiz | 0 | - | 5.00 | 4,782,766 |
| Oceania Map Quiz | 0 | - | 4.98 | 658,447 |
| Native American Tribes in the US | 0 | - | 4.74 | 25,701 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,444 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,451,468 |
| Asia Map Quiz | 0 | - | 4.99 | 923,798 |
| Africa Map Quiz | 0 | - | 5.00 | 2,126,845 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 51,337 |
| Australia Map Quiz | 0 | - | 4.95 | 345,910 |
| Largest Land Animals of the Americas | 0 | - | 4.39 | 20,308 |
| Pixelated Americas Map | 0 | - | 4.39 | 47,379 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,841 |
| South American Geography Quiz #2 | 0 | - | 4.41 | 43,670 |
| South American Geography Quiz #1 | 0 | - | 4.62 | 32,847 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,602 |
| Top U.S. Cash Crops | 0 | - | 4.39 | 62,424 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,765 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,710 |
| Largest Asian-American Ethnic Groups | 0 | - | 4.12 | 41,148 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,888 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.74 | 33,194 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,808 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 75,414 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,488 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,831 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 91,290 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 85,205 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,555 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 82,979 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 60,220 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.43 | 47,058 |
| Canadian Geography on the Map | 0 | - | 4.55 | 26,412 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,612 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,868 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,458 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,914 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,258 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 116,849 |
| The Only European Country ... | 0 | - | 4.91 | 218,563 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,274 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 42,018 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 99,782 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,386,594 |
| Countries of Africa | 0 | - | 5.00 | 2,555,061 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,691 |
| African East Coast | 0 | - | 4.96 | 96,627 |
| Western Africa Map Quiz | 0 | - | 4.97 | 74,478 |
| Australian States and Territories | 0 | - | 4.96 | 142,715 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,463 |
| Australia True or False | 0 | - | 4.87 | 57,097 |
| Flags of North and South America | 0 | - | 4.99 | 376,220 |
| South American Physical Geography | 0 | - | 4.58 | 18,392 |
| Paraguay... or Uruguay? | 0 | - | 4.55 | 26,767 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 33,181 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.61 | 45,242 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 36,250 |
| Bahamas Country Quiz | 0 | - | 4.63 | 19,275 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,122 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,482 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,255,048 |
| Celtic Nations | 0 | - | 4.61 | 47,072 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,334,313 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,357 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,902 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,404 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,663 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.83 | 87,934 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,391 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 175,238 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,174 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,016 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,681 |
| Slavic Countries | 0 | - | 4.96 | 112,242 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,647 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,379 |
| Counties of England | 0 | - | 4.97 | 801,802 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 360,624 |
| Flags of Asia Quiz | 0 | - | 4.99 | 618,844 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 110,669 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,419 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,785 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 109,046 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,656 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 108,193 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 71,953 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 231,367 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.91 | 50,471 |
| Countries of the Middle East | 0 | - | 4.96 | 202,384 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,699 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 99,431 |
| Flags of Africa Quiz | 0 | - | 5.00 | 476,305 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 218,164 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 117,359 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 162,150 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 34,016 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 154,421 |
| Top African Languages on a Map | 0 | - | 4.94 | 75,039 |
| African Island Countries | 0 | - | 4.96 | 102,314 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 244,398 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 33,595 |
| Flags of Oceania | 0 | - | 5.00 | 262,125 |
| All First-Level Subdivisions of Oceania on a Map | 0 | - | 4.97 | 27,633 |
| Australia Cities Map Quiz | 0 | - | 4.82 | 146,374 |
| Australia Country Quiz | 0 | - | 4.43 | 69,795 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,927 |
| Regions of New Zealand | 0 | - | 4.84 | 28,689 |
| The Only American Country ... | 0 | - | 4.92 | 122,110 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,565 |
| Places Mentioned in the Song "Kokomo" | 0 | - | 4.44 | 17,069 |
| North America Capitals Quiz | 0 | - | 4.99 | 221,752 |
| USA Tourist Attractions by Description #1 | 0 | - | 4.14 | 27,182 |
| Which Island in the United States? | 0 | - | 4.29 | 29,730 |
| American Foods | 0 | - | 3.66 | 39,428 |
| Biggest U.S. Car Insurance Companies | 0 | - | 4.26 | 6,144 |
| Countries Across the Ocean from the U.S. | 0 | - | 3.95 | 32,324 |
| U.S. Landmarks Picture Quiz | 0 | - | 4.27 | 14,808 |
| U.S. Groups of Four Quiz | 0 | - | 4.39 | 25,422 |
| U.S. Groups of Three Quiz | 0 | - | 4.04 | 20,969 |
| Old West History | 0 | - | 4.34 | 15,294 |
| Life of Benjamin Franklin | 0 | - | 4.24 | 6,530 |
| American Revolution - Multiple Choice | 0 | - | 4.34 | 19,977 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,769 |
| US States Quiz | 0 | - | 5.00 | 16,972,720 |
| Top 10 U.S. States with the Highest Life Expectancy | 0 | - | 4.33 | 41,719 |
| U.S. States with the Most Gun Ownership | 0 | - | 4.45 | 29,777 |
| U.S. States with Oldest Median Age | 0 | - | 4.33 | 42,691 |
| Top 10 U.S. States with the Longest Commutes | 0 | - | 4.28 | 44,509 |
| US States with the Most Executions | 0 | - | 4.51 | 26,422 |
| Top 10 U.S. States with the Most Lighthouses | 0 | - | 4.61 | 29,145 |
| Top 10 Least White U.S. States | 0 | - | 4.17 | 48,224 |
| Top 10 Least Happy U.S. States | 0 | - | 4.54 | 24,228 |
| U.S. Geography True or False #1 | 0 | - | 4.53 | 28,795 |
| U.S. Geography - Multiple Choice | 0 | - | 4.41 | 24,883 |
| 20 Most-Visited Places in Canada | 0 | - | 4.27 | 13,240 |
| Canadian Musical Acts by Two Songs | 0 | - | 4.07 | 28,845 |
| Canada Decoder | 0 | - | 4.07 | 18,761 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 105,422 |
